Compliant with PCI Express Specification Revision v2.1 Supports 1- 2.5/5Gbps PCI Express bus Onboard single 2.5G network port, integrated 10/100/1000M/2.5G transceiver Support 2.5G and 1G Lite, 100M mode Auto-negotiation with extended next page functionality Support for swap/sex/skew correction detection and automatic correction Compatible with IEEE802.3, IEEE802.3u, IEEE802. Support IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization Support shaping algorithm based on IEEE802.1Qav credit Support IEEE802.1P layer 2 priority encoding Support IEEE802.1Q VLAN tagging Support IEEE802.3bz-2016 (NGBASET) Support full-duplex flow control (IEEE802.3x) Supports jumbo frames up to 16K bytes Support for Virtual Machine Queue (VMQ) Support quad-core receive-side scaling (RSS) Bus type: M.2 A+E KEY Transmission medium: 1 x 2.5G RJ45 port Transmission rate: 2.5G/1000/100Mbps Network Mode: Support 2.5G and 1G Lite mode Network topology: - Support IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization System requirements: Win 7/Win 8/Server 2008/Win 8.1/Server 2012/2016, Win 10 32/64bit, .. Support IEEE802.3az-2010 Colour:green Material:PCB Package Contents: 2 x M.2 A+E RTL8125B Main Card 2 x RJ45 Network Terminal 2 x Network Termination Cable 2 x CD Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Supports ECMA-393 ProxZzzy standard for sleeping hosts, supports Wake-on-LAN and "RealWow!" technology (remote ) Support hardware ECC (Error Correction Code), hardware (Cyclic Redundancy Check) function Supports PCI (Message Signaled Interrupt) and -X